Solar charge controller weird voltage reading
Hello, I have 2 x solar panels installed. Each with 25V and 3,7 amps. The solar charge controller is called "CMT 30" and is supposed to be PWM. Now, if I read the voltage on the controller on ...
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pianotuna wrote:
Welcome to the forums.
The panels are about 95 watts @ 25 volts. But the PWM controller drags the voltage down to just 12.7.
Not all PWM controllers act that way. Mine (HQST) boosts at 14.4 volts and floats at 13.8 volts. My 100 watt panels provide about 75 watts each under normal conditions. The OP's should do as well.
To the OP: Some controllers scroll through various readings. Yours may be looking at one reading and then another?
